1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2019 The FreeBSD Foundation 5 * 6 * This software was developed by BFF Storage Systems, LLC under sponsorship 7 * from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 extern "C" { 32 #include <dirent.h> 33 #include <fcntl.h> 34 } 35 36 #include "mockfs.hh" 37 #include "utils.hh" 38 39 using namespace testing; 40 41 class ReleaseDir: public FuseTest { 42 43 public: 44 void expect_lookup(const char *relpath, uint64_t ino) 45 { 46 FuseTest::expect_lookup(relpath, ino, S_IFDIR | 0755, 0, 1); 47 } 48 }; 49 50 /* If a file descriptor is duplicated, only the last close causes RELEASE */ 51 TEST_F(ReleaseDir, dup) 52 { 53 const char FULLPATH[] = "mountpoint/some_file.txt"; 54 const char RELPATH[] = "some_file.txt"; 55 uint64_t ino = 42; 56 DIR *dir, *dir2; 57 58 expect_lookup(RELPATH, ino); 59 expect_opendir(ino); 60 EXPECT_CALL(*m_mock, process( 61 ResultOf([=](auto in) { 62 return (in.header.opcode == FUSE_READDIR && 63 in.header.nodeid == ino && 64 in.body.readdir.offset == 0); 65 }, Eq(true)), 66 _) 67 ).WillOnce(Invoke(ReturnImmediate([=](auto in __unused, auto& out) { 68 out.header.error = 0; 69 out.header.len = sizeof(out.header); 70 }))); 71 expect_releasedir(ino, ReturnErrno(0)); 72 73 dir = opendir(FULLPATH); 74 ASSERT_NE(nullptr, dir) << strerror(errno); 75 76 dir2 = fdopendir(dup(dirfd(dir))); 77 ASSERT_NE(nullptr, dir2) << strerror(errno); 78 79 ASSERT_EQ(0, closedir(dir)) << strerror(errno); 80 ASSERT_EQ(0, closedir(dir2)) << strerror(errno); 81 } 82 83 TEST_F(ReleaseDir, ok) 84 { 85 const char FULLPATH[] = "mountpoint/some_dir"; 86 const char RELPATH[] = "some_dir"; 87 uint64_t ino = 42; 88 DIR *dir; 89 90 expect_lookup(RELPATH, ino); 91 expect_opendir(ino); 92 expect_releasedir(ino, ReturnErrno(0)); 93 94 dir = opendir(FULLPATH); 95 ASSERT_NE(nullptr, dir) << strerror(errno); 96 97 ASSERT_EQ(0, closedir(dir)) << strerror(errno); 98 } 99 100 /* Directories opened O_EXEC should be properly released, too */ 101 TEST_F(ReleaseDir, o_exec) 102 { 103 const char FULLPATH[] = "mountpoint/some_dir"; 104 const char RELPATH[] = "some_dir"; 105 uint64_t ino = 42; 106 int fd; 107 108 expect_lookup(RELPATH, ino); 109 expect_opendir(ino); 110 expect_releasedir(ino, ReturnErrno(0)); 111 112 fd = open(FULLPATH, O_EXEC | O_DIRECTORY); 113 ASSERT_LE(0, fd) << strerror(errno); 114 115 ASSERT_EQ(0, close(fd)) << strerror(errno); 116 } 117